--Mum, I’m going to visit my uncle. What about staying there a week?

--A week is too long. Try to be back in a _____ of days.

A．number

B．dozen

C．couple

D．score

下列资产负债表项目，应根据有关科目余额减去其备抵科目后的净额填列的有（）。

A.货币资金

B.交易性金融资产

C.长期股权投资

D.固定资产